Abstract
High temperatures are considered the most important limiting factor for the productivity of beans, and the ongoing increase in global temperature is estimated to have a strong negative impact on its yield. With the aim of mitigating the effects of high temperatures that usually prevail during growing seasons, the efficacy of two novel biostimulants (not yet commercially available) based on amino acids supplemented with sulfur or silicon was tested in two consecutive growing seasons (early and late). During the early season (May 7–June 30), conditions of intense heat stress prevailed, and in combination with the cultivation of a relatively sensitive genotype, the marketable yield was reduced by 51%, compared to the yield in the late season (7,323 kg ha−1). The exogenous application of amino acid-based biostimulants supplemented with sulfur or silicon did not significantly mitigate yield reduction (7,143–7,693 kg ha−1). On the other hand, during the late season (August 5–October 19), conditions of milder heat stress prevailed, and in combination with the cultivation of a relatively resistant genotype, the marketable yield was high (14,915 kg ha−1). The exogenous application of amino acid-based biostimulants supplemented with sulfur or silicon did not significantly affect chlorophyll fluorescence parameters or yield (13,908–15,833 kg ha−1).
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Claims 8
Claim · model-written summary
Early-season heat with a sensitive genotype reduced marketable green bean yield by 51% versus the late season.
Verbatim
t0“green beans”
e0“During the early season (May 7–June 30), conditions of intense heat stress prevailed, and in combination with the cultivation of a relatively sensitive genotype, the marketable yield was reduced by 51%, compared to the yield in the late season (7,323 kg ha−1)”
Claim · model-written summary
Sulfur-supplemented amino acid biostimulant did not significantly mitigate early-season yield loss.
- Taxon
- green beanst0
- Treatment
- amino acid-based biostimulants supplemented with sulfure0
- Outcome
- yield reductione0
- Direction
- did not significantly mitigatee0
- Value
- 7,143–7,693 kg ha−1e0
Not reportedComparator
Verbatim
t0“green beans”
e0“The exogenous application of amino acid-based biostimulants supplemented with sulfur or silicon did not significantly mitigate yield reduction (7,143–7,693 kg ha−1)”
Claim · model-written summary
Silicon-supplemented amino acid biostimulant did not significantly mitigate early-season yield loss.
- Taxon
- green beanst0
- Treatment
- silicone0
- Outcome
- yield reductione0
- Direction
- did not significantly mitigatee0
- Value
- 7,143–7,693 kg ha−1e0
Not reportedComparator
Verbatim
t0“green beans”
e0“The exogenous application of amino acid-based biostimulants supplemented with sulfur or silicon did not significantly mitigate yield reduction (7,143–7,693 kg ha−1)”
Claim · model-written summary
Late-season green beans under milder heat with a resistant genotype had marketable yield of 14,915 kg ha−1.
Verbatim
t0“green beans”
e0“during the late season (August 5–October 19), conditions of milder heat stress prevailed, and in combination with the cultivation of a relatively resistant genotype, the marketable yield was high (14,915 kg ha−1)”
Claim · model-written summary
Sulfur-supplemented amino acid biostimulant did not significantly affect late-season chlorophyll fluorescence parameters.
- Taxon
- green beanst0
- Treatment
- amino acid-based biostimulants supplemented with sulfure0
- Outcome
- chlorophyll fluorescence parameterse0
- Direction
- did not significantly affecte0
Not reportedComparator
Verbatim
t0“green beans”
e0“The exogenous application of amino acid-based biostimulants supplemented with sulfur or silicon did not significantly affect chlorophyll fluorescence parameters or yield (13,908–15,833 kg ha−1)”
Claim · model-written summary
Silicon-supplemented amino acid biostimulant did not significantly affect late-season chlorophyll fluorescence parameters.
- Taxon
- green beanst0
- Treatment
- silicone0
- Outcome
- chlorophyll fluorescence parameterse0
- Direction
- did not significantly affecte0
Not reportedComparator
Verbatim
t0“green beans”
e0“The exogenous application of amino acid-based biostimulants supplemented with sulfur or silicon did not significantly affect chlorophyll fluorescence parameters or yield (13,908–15,833 kg ha−1)”
Claim · model-written summary
Sulfur-supplemented amino acid biostimulant did not significantly affect late-season yield.
- Taxon
- green beanst0
- Treatment
- amino acid-based biostimulants supplemented with sulfure0
- Outcome
- yielde0
- Direction
- did not significantly affecte0
- Value
- 13,908–15,833 kg ha−1e0
Not reportedComparator
Verbatim
t0“green beans”
e0“The exogenous application of amino acid-based biostimulants supplemented with sulfur or silicon did not significantly affect chlorophyll fluorescence parameters or yield (13,908–15,833 kg ha−1)”
Claim · model-written summary
Silicon-supplemented amino acid biostimulant did not significantly affect late-season yield.
- Taxon
- green beanst0
- Treatment
- silicone0
- Outcome
- yielde0
- Direction
- did not significantly affecte0
- Value
- 13,908–15,833 kg ha−1e0
Not reportedComparator
Verbatim
t0“green beans”
e0“The exogenous application of amino acid-based biostimulants supplemented with sulfur or silicon did not significantly affect chlorophyll fluorescence parameters or yield (13,908–15,833 kg ha−1)”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.